Spatial-temporal Change And Driving Force Analysis Of Tourism Land In Wanning City

In recent years,China's economic level continues to rise,tourism has become a new economic growth point,especially in the new normal economy,tourism industry has become a new engine of economic growth.With the increase of tourism status and the rapid growth of tourism economy,the contradiction between tourism land and other industrial land began to appear.Therefore,this paper chooses Wanning City of Hainan Province as the research area.Through collecting remote sensing image data,statistical data and other resources in the four research periods of 2000,2005,2010 and 2015,it expresses and analyses the changes of tourism land use,and analyses the landscape pattern in the study area,and discusses the land use.The specific impact of changes on landscape ecology and the evolution of various types of tourist land were analyzed qualitatively and quantitatively,which provided a scientific basis for sustainable utilization of land resources,tourism planning,coordination of human-land contradictions,and utilization and development management of resources in protected areas in the future.The main achievements and understandings of this paper are as follows:(1)Establishment and production of tourism land classification indicators.This paper integrates the existing research results,and links up with the Classification of Land Use Status,divides the tourism land in Wanning City.The new system includes seven first-level categories:tourism land and arable land,woodland,grassland,construction land,water area and unused land,among which tourism land is subdivided into natural tourism land.There are six secondary classes of land for artificial tourism,land for tourism and recreational facilities,land for tourism infrastructure,land for tourism production and other tourism land.In this paper,Landsat series images are used as remote sensing image source,supervised classification is used to interpret the land use information of the study area,and human-computer interaction and visual interpretation are used to extract the tourism land information of Warning city from 2000 to 2015.(2)Study on the dynamics of tourist land in Wanning City.By using ArcGIS statistical operation function,this paper analyzed the changes of the amount of tourism utilization area and the structure of the type of land,and made the transfer matrix of each type of land.After analyzing the statistical change data,the main types of land use in Wanning City are woodland and cultivated land,accounting for 83.24%of the total area.The total area of tourism land accounted for 8.45%.It is found that in the past 15 years,tourism land has developed rapidly,a large number of natural cover has been transformed into artificial construction land,especially the forest land has a higher landscape transfer rate,and its landscape dominance has declined more.(3)Landscape spatial pattern analysis.From 2000 to 2015,10 landscape indices were selected and the landscape indices at corresponding time points were calculated.The overall characteristics of landscape pattern in Wanning City were analyzed.The landscape pattern index of Wanning City has changed greatly.The fragmentation degree of landscape pattern is deepened,and the spatial heterogeneity is enhanced.The shape of landscape patches in the region is becoming more and more complex,and the structure of patches and landscape edges is becoming more and more complex.The aggregation degree of dominant landscape is gradually decreasing.The change of tourism land use in Wanning City is gradually enhanced by human factors,and the effect of natural factors is gradually reduced,which is also the main reason for the change of landscape pattern in the study area.(4)Analysis of driving factors of temporal and spatial change of tourism land.Through qualitative analysis of policy as driving force of tourism land change,and quantitative analysis of population,economy,transportation and tourism factors,and correlation analysis of 15 of these four factors with tourism land area,the conclusions are as follows:First,the number of secondary industry employees,fixed investment.Total amount,Wanning GDP,total tourism income,the number of practitioners in the whole society,freight volume,the number of practitioners in the primary industry and the total population at the end of the year are the eight main factors driving the change of tourism land.Secondly,among the four factors,population and economic factors are represented by the number of practitioners in the tertiary industry and the total fixed investment.The change of tourism land plays a decisive role.This paper uses stepwise regression method to extract the three indicators of the tertiary industry,the whole society and GDP as the three variables of the total change of tourism land in Wanning City,and establishes a multi-linear regression model with high fitting degree,to study the intrinsic driving factors of tourism land expansion.